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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-06 12:39:52 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-06 12:39:52 -0700 |
| commit | eb3e6ae960562c1b12b3d9c7bc80687e155d78d0 (patch) | |
| tree | 905089e187f85c4aabd62032050e78b9afd8d573 /include | |
| parent | 5f1a1369e89e05baba1df72834c9b48cd1ce45e1 (diff) | |
| parent | 3658a71b10c8471ac217983ddf2a2bdde71008af (diff) | |
Merge tag 'iio-for-3.13c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
Third set of new functionality and cleanups for IIO in the 3.13 cycle.
Driver New Functionality
* MXS - new interrupt driven touch screen support for i.MX23/28. Old
polled implementation dropped.
Driver Cleanups
* Some spi_sync boilerplate dropped by using spi_sync_transfer
* Some switching of drivers to the fractional type for scale reading.
Moves the ugly calculation into one place.
* Fix the documentation for *_voltage_scale which is never been correct
or as implemented in any driver.
* HID sensor hub and children : Open the sensor hub only when someone cares.
* hmc5843 - various minor
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/hid-sensor-hub.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h index 32ba45158d3..a265af294ea 100644 --- a/include/linux/hid-sensor-hub.h +++ b/include/linux/hid-sensor-hub.h @@ -47,11 +47,13 @@ struct hid_sensor_hub_attribute_info { * @hdev: Stores the hid instance. * @vendor_id: Vendor id of hub device. * @product_id: Product id of hub device. + * @ref_cnt: Number of MFD clients have opened this device */ struct hid_sensor_hub_device { struct hid_device *hdev; u32 vendor_id; u32 product_id; + int ref_cnt; }; /** @@ -74,6 +76,22 @@ struct hid_sensor_hub_callbacks { void *priv); }; +/** +* sensor_hub_device_open() - Open hub device +* @hsdev: Hub device instance. +* +* Used to open hid device for sensor hub. +*/ +int sensor_hub_device_open(struct hid_sensor_hub_device *hsdev); + +/** +* sensor_hub_device_clode() - Close hub device +* @hsdev: Hub device instance. +* +* Used to clode hid device for sensor hub. +*/ +void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev); + /* Registration functions */ /** |